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Data fusion system and method for controlling balance of multi-intersection traffic flow of trunk road

A multi-intersection and data fusion technology, applied in traffic control systems, road vehicle traffic control systems, instruments, etc., can solve problems such as queue length and parking rate that cannot meet urban traffic control

Active Publication Date: 2010-11-03
BEIJING JIAOTONG UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous increase of traffic demand and the requirement of road network balance, traditional traffic control objectives such as intersection delay, queuing length and parking rate can no longer meet the needs of urban traffic control. In order to meet the needs of consumers for the traffic environment, it is necessary to establish a traffic control method with the goal of road network balance.

Method used

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  • Data fusion system and method for controlling balance of multi-intersection traffic flow of trunk road

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Embodiment 1

[0039] Embodiment 1: The data fusion method of traffic flow balance control at multiple intersections on arterial lines, which comprises two or more intersections by defining an arterial line, and the balance index is determined by the weighted expected value of each intersection balance index included in the arterial line. embody, combine Figure 1-2 , the data fusion method includes the following steps:

[0040] Step 1: Acquisition of the average queuing length of the lanes at the intersection, by installing several sensors on the lanes, using the information detected by the sensors to analyze and calculate, and using queuing theory to calculate the average length of the lanes.

[0041] Specifically, such as Figure 4 As shown, a coil sensor SL is installed at each intersection stop line at the intersection, and a geomagnetic sensor ST is installed at the entrance of the road section entering the lane (that is, at the beginning of the dotted line of the entrance lane and th...

Embodiment 2

[0069] Balanced index fusion technology for regional multi-intersections, such as image 3 As shown, the fusion technique includes the following steps:

[0070] Assume a simple area network with four trunks in the network. The north-to-south trunk line on the left is represented by LNS, the north-to-south trunk line on the right is represented by RNS, the west-to-east trunk line below is represented by DWE, and the west-to-east trunk line above is represented by UWE. The phase set of the intersection is B={1,2, 3, 4}, referring to the directions of west to east, south to north, east to west and north to south, respectively. refer to Figure 6 Area network topology map.

[0071] In the regional multi-intersection, the balance index is reflected by the weighted expected value of the balance index value of several arterial lines in the area. as follows:

[0072] JH n = f ′ ( x ...

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Abstract

The invention provides data fusion system and method for controlling balance of multi-intersection traffic flow of a trunk road. In the method, data fusion of balance indexes of multiple intersections of the trunk road is realized by weighted expected values of balance indexes of all intersections included in the trunk road by defining the trunk road including two or more intersections. The method comprises the following steps of: acquiring average queue length of traffic lanes at the intersections; and performing fusion of balance indexes of the intersections; and performing data fusion of balance indexes of multiple intersections of the trunk road. The invention has the advantages of universality, comprehensiveness and flexibility and can be popularized to perform data fusion of balance indexes of multiple intersections of multiple trunk roads in an area.

Description

technical field [0001] The invention relates to the technical field of traffic multi-source data fusion, in particular to a data fusion method for traffic balance-oriented control. Background technique [0002] With the continuous increase of traffic demand and the requirement of road network balance, traditional traffic control objectives such as intersection delay, queuing length and parking rate can no longer meet the needs of urban traffic control. In order to meet the needs of the public for the traffic environment, it is necessary to establish a traffic control method with the goal of road network balance. [0003] Equilibrium is an index that quantitatively describes the degree of equilibrium of traffic flow in all directions. Equilibrium means that decision makers control the queuing length of traffic flow in all directions of the control object in a balanced manner when formulating traffic control methods. In fact, queuing status is an important indicator reflectin...

Claims

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Application Information

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IPC IPC(8): G08G1/00G08G1/042
Inventor 贾睿妍邓文董宏辉秦勇徐东伟李海舰史元超贾利民
Owner BEIJING JIAOTONG UNIV
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